81211445

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{16693}}^1$

素因数の和:16844

約数の個数: 16

約数和(自身を含む): 112183680

約数和(自身を除く): 30972235

約数列:

[1, 5, 7, 35, 139, 695, 973, 4865, 16693, 83465, 116851, 584255, 2320327, 11601635, 16242289, 81211445]

約数ペア:

[(1, 81211445), (5, 16242289), (7, 11601635), (35, 2320327), (139, 584255), (695, 116851), (973, 83465), (4865, 16693)]